Best I could tell some of the base gasket had started to break away and was circulating around potentially blocking things up. I say this because there was gasket material all around the bottom end and on the oil pump screen, although I did not find any in the jets. I did, however, notice a sludgy build up on the studs that oil circulates around to go up to the head. So, it may have been those things in conjunction or one of them alone. But yeah, the lesson learned here is that if I had not did a complete tear down I'd say there was a high probability of the same problem occurring. I do have to thank Ken at cyclex for convincing me to do that otherwise I was just gonna toss in some cheap used parts and see what happened.